HackingEducationEducationHacking OtherSupply Chain (3P Vendor)Customer Data InvolvedIdentity (basic)Government IDMediumResolved

Westminster School

bd_2bfc380e7a17af9e · schema v1 · pii pii-v1

Severity

Medium

Discovered

Oct 20, 2020

Filed

Dec 7, 2020

To disclose

7 weeks

Affected · nationwide

8021 in this filing

Linked

4 filings

Confidence

50%

Full breach record for Westminster School →

Westminster School reported a data breach affecting 802 individuals, including one Maine resident, due to a security incident at a third-party vendor. The breach occurred on April 18, 2020, and was discovered on October 20, 2020. The compromised information included names and Social Security numbers. The school offered 24 months of identity theft protection services through CyberScout to those affected.

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Maine clockDiscovered Oct 20, 2020 → Filed with AG Dec 7, 202048d ⏱ ME AG >30d7 weeks discovery → filing

⚠ unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

Incident timeline

undetected · 185 days

discovery → filing · 7 weeks / 48 days

Apr 18, 2020

Begins

Oct 20, 2020

Discovered

Dec 7, 2020

Filed

This filing is one of 4 filings about the same incident.View merged incident

Part of BLACKBAUD, INC. supply-chain incident (2020) — a supply-chain cascade affecting multiple organizations.View cascade →

Linked disclosures

Why this link?

Regulatory filings (3) · sorted by filing gap

Massachusetts State AGbd_4efa5d69b41ec6b62020-12-07Verified
Oregon State AGbd_691e794e88e12bc92020-12-07Verified
New Hampshire State AGbd_39063a890e34f9de2020-12-08 · +1dVerified

Name: Westminster School
norm: westminster school
Domain: westminster-school.org

Name: Westminster School
norm: westminster school
Domain: westminster-school.org
Industry: Education
Industry: Educationllm

Discovered: Oct 20, 2020
Breach occurred: Apr 18, 2020
Undetected for: 185 daysoccurrence → discovery
Materiality determined: —
Notification sent: Dec 7, 2020
Affected individuals: 802state + nationwide
Data types: Identity (basic)Government ID
Data elements: Social Security number
Attack vector: Third-Party / Supply Chain

Changes made: Offered 24 months of identity theft protection services through CyberScout.
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 7 weeks(48 days from discovery to filing)
Compliance flags: ME AG >30d · 48d
Discovery-date grounding: unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.
Clock breakdown: Statute Window Elapsed Threshold Status
Maine
Discovered: Oct 20, 2020
→ Filed with AG: Dec 7, 2020
48d 30 days (soft) ME AG >30d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: Oct 20, 2020 → Filed with AG: Dec 7, 2020	48d	30 days (soft)	ME AG >30d

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 4 filings · 4 states

View merged incident ↗

Massachusetts State AGDec 7 · first

Oregon State AGDec 7 · first

Maine State AGDec 7 · first · this page

New Hampshire State AG+1d

Evidence ladder

Leak-site claim

Attacker assertion only. Establishes: claim date, group, alleged victim.

Press / market report

Unlocks: incident narrative, operational impact. Still no compliance clock.

State AG / regulator filingThis record

Unlocks: discovery date, data types, affected count, compliance clock.

SEC 8-K / victim statement

Unlocks: materiality, stated response, full audit trail. Ceiling removed.

Source URL: https://www.maine.gov/agviewer/content/ag/985235c7-cb95-4be2-8792-a1252b4f8318/7ab1c0b8-a73a-4e08-8a8e-9778b75f3a47.shtml
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Dec 7, 2020
Raw hash: 7641ec80e6fa637eb62d2072d1f596a6891ad70ba297d2239401454a05de62ba

Linked disclosures

Regulatory filings (3) · sorted by filing gap

Reporting entityWestminster School

Victim entityWestminster School

Incidentdiscovered Oct 20, 2020

Stated responseOffered 24 months of identity theft protection services through CyberScout.

ComplianceME AG >30d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov